Acetylene-gas generator.



, No. 634,869. Patented Oct. l7, I899.

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ACETYLENE GAS GENERATOR.

(Application filed June 19, 1899.)

(No Model.)

in'rrnn STATES PATENT @rricna OTTO BOETTCHER, OF OIIARLOTTENBURG, GERMANY.

ACETYLENE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 634,869, dated October 17, 1899.

Application filed \Tune 19, 1899- -7 1 (N0 11105613 To (tZZ whom (It may concern:

Be itknown that I, OTTO BOETTOHER, a subject of the Emperor of Germany, residing at Charlottenburg, near Berlin, Empire of Germany, have invented certain new and useful Improvements in Acetylene-Gas Generators, of which the following is a full, clear, and exact description.

The present invention relates to acetylenegas generators; and its object is to dispense with the gasometer and bell, as also with the gas-outlet cock at the apparatus, the quantity of gas generated being dependent on the amount required, and when the generation is to cease the supply of water to the calcium carbid is cut off and the flames allowed to burn out the small quantity of gas left in the carbid-holder.

In order to render the present specification more easily intelligible, reference is had to the accompanying drawing, which shows a vertical section through an apparatus constructed according to the present invention.

The carbid-holderbis adjustablysuspended in the water-receptacle c'by means of the gasoutlet pipe a. A sleeve 6, having external threads, is adapted'to screw in a bushing in the carbid-holder cover, in which the said sleeve may be adjusted vertically by means of a hand-wheel f or other suitable device. The-sleeve e is slotted vertically at the top and may be clamped to the pipe at by means of a nut f. The pipe a is fitted gastight to the cover g of the carbid-holder Z). To the bottom of the receptacle b a housing It for a double valve is fixed, said housing projecting inwardly and having an upper comicallyformed end with a tapering openingm therethrough. The lower part of the housing is provided with a valve-seatin g 70, against which a valvel is adapted to close under circumstances hereinafter set forth. The valveZ has a downwardly-extending stem (1, adapted to contact with the bottom of the water-receptacle when the carbid-holder is lowered. The valve J has, further, an upwardly-projecting stem i, having a conical top adapted to fit into and close or partially close the throughway on. The valve is spring-pressed-down onto its seat 7t, so as to close the water-inlet.

The device operates in the following manner: \Vheu the apparatus is not in use, the

carbid'holderis in its raised position and the stem of the valve Z is above the bottom of the water-receptacle,so that the water-inlet valve at is closed. When it is desired to generate acetylene gas, the carbid-holder b is lowered a certain distance, according to the number of flames required to burn, and the valve Z willbe slightly opened, so that a very fine jet of water will be able to pass to the carbid in the holder through m and gas will be generated, passing along the pipe to the points of consumption. If too much gas is being generated for the number of flames, the holder may be lowered slightly farther, when the conical end of the valve 1; will be inserted into the opening m and regulate the water-inlet. The pointed regulating-valve 2' also serves to clean the opening m should it get stopped up from any cause. It will thus be seen that the pressure of the gas and the quantity generated will be regulated by the height of the Water column in the water-receptacle. If the pressure of gas inside the holder exceeds the pressure of the water column, no more water will for the time being enter the openingm, and thus the gas regulates itself automatically. If the supply is to be cut off, the carbid-holder is simply raised and the valve Z closes under the action of its spring.

If the carbid-holder is taken out for refilling, the valve lof the same will also be closed, as will be obvious.

I claim as my invention- 1. In an acetylene-gas generator the combination of a water-receptacle and a carbidholder having gas-outlet and being vertically adjustably suspended therein a water-inlet valve arranged at the bottom of the said carbid-holder and means in connection therewith for regulating the opening of the said. valve by the adjustment of the vertical position of the carbid-holder in the manner and for the purpose substantially as described.

2. In an acetylene-gas generator, the combination of a water-receptacle and a carbidholder. having gas-outlet pipe and being suspended therein and vertically adjustable, a water-inlet valve at the bottom of the said holder and a valve-housing to conduct-the water to the top of the carbid in the holder, and means in connection with said valve to open and regulate the inlet-opening when the holder is lowered and to close the said valve entirely when the holder is raised in the manner and for the purpose substantially as described.

3. In an acetylene-gas generator, the combination of a water-receptacle and a carbidholder having gas-outlet pipe and being adjustably suspended therein, a valve in the bottom of saidcarbid-holder, havinginwardly-extending housing, with upwardly-tapering inlet-orifice at the top and a valve-seat at the bottom, a valve to close onto said lower seat and having upwardly-extending tapered end to fit into and through said tapered opening, and a downwardly-extending stem to contact with the bottom of the water-receptacle in the manner and for the purpose substantially as described.

4. In an acetylene-gas generator the co1n bination of a Water-receptacle having therein a carbid-holder with an outlet-pipe and means in connection with said pipe to adjust the holder vertically in the Water-receptacle, a valve at the bottom of the said holder and means in connection therewithfor regulating the Water-inlet according to the position of the holder in the Water-receptacle and for closing the valve entirely when the holder is raised or removed in the manner and for the purpose substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

OTTO BOETTOHER Witnesses:

WALDEMAR HAUPT, HENRY HASPER 

